Yeah thanks for the info. Very nice of Matthias to do that.
I have actually noticed a few bugs but I didn't really care that much.
This was probably a bug of a more serious kind, like it happens rarely but can break the game so you can't go on I imagine. Still it is very generous to replace discs, imagine big publishers to do that. Today they can patch, but in older days you were just stuck with the buggy copies; and unlike Matthias they have a budget and it's not just a hobby for them.
So I find this ver ind of him to. 
Systems owned: Atari 2600, Lynx, Jaguar, NES, SNES, N64, GameBoy, Master System, Mega Drive, Dreamcast, Game Gear, PlayStation, PlayStation 2, PlayStation 3, PlayStation Portable, Xbox, Wonderswan
I got my replacement CD today 